DNVGL Grade VL AO 690+QT

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Description

Extra High Strength Steel

Related Standards

This material data has been provided by DNVGL Standard.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValueComment

Carbon equivalent (CET)

0.4 [-]

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Carbon equivalent (CEV)

0.64 [-]

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for t ≤ 50 mm plate thickness

0.66 [-]

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for 50 < t ≤100 mm plate thickness

0.68 [-]

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t ≤ 65 mm tabulars

0.7 [-]

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for 100 < t ≤ 250 mm plate thickness

Density

7.8 - 7.9 g/cm³

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typical for low carbon steel

Mechanical

PropertyTemperatureValueComment

Charpy impact energy, V-notch

0 °C

62 J

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min.

Charpy impact energy, V-notch, transverse

0 °C

46 J

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min.

Elastic modulus

200 - 215 GPa

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typical for low carbon steel

Elongation

14 %

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min., Transverse

16 %

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min.

Poisson's ratio

0.29 [-]

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typical for low carbon steel

Shear modulus

82 GPa

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typical for low carbon steel

Tensile strength

770 - 940 MPa

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Thermal

PropertyValueComment

Coefficient of thermal expansion

1.32e-05 - 1.38e-05 1/K

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typical for low carbon steel

Max service temperature

500 °C

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typical for carbon steel

Melting point

1480 - 1526 °C

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typical for low carbon steel

Specific heat capacity

465 J/(kg·K)

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typical for low carbon steel

Thermal conductivity

25 - 93 W/(m·K)

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typical for low carbon steel

Electrical

PropertyValueComment

Electrical resistivity

1.43e-07 - 1.74e-07 Ω·m

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typical for carbon steel

Chemical properties

PropertyValueComment

Aluminium

0.018 %

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min.

Carbon

0.18 %

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Chromium

1.5 %

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Copper

0.5 %

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Manganese

1.7 %

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Molybdenum

0.7 %

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Nickel

2 %

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higher Ni content may be qualified and accepted subject to qualification during manufacturer qualification testing

Niobium

0.06 %

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Nitrogen

0.015 %

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the total aluminium to nitrogen ratio shall be a minimum of 2:1. When other nitrogen binding elements are used, the minimum Al value and Al/N ratio do not apply

Phosphorus

0.025 %

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can be 0.005% higher than the specified value

Silicon

0.8 %

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Sulfur

0.015 %

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can be 0.005% higher than the specified value

Titanium

0.05 %

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Vanadium

0.12 %

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Technological properties

Property
Supplier Disclaimer

The given information is a rough description and some properties can depend on various factors such as product thickness. Please contact the supplier or refer to the related norm or standard for further information.